MadameMarque -> RE: The secret to life after menopause - Older men/younger women ... (12/19/2007 9:27:00 AM)
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I think what they're asserting is that the life span of a species will hit a "wall of death," soon after the age at which they are no longer able to reproduce. Whereas most women are no longer reproducing after age 54, men often still have the potential. They theorize that because men follow the instinct to couple with women of fertile age, they are reproducing at an older age, and so, no wall of death for them, since that would be determined by some fairly uniform time at which they can't reproduce. Apparently, they think that if men are preserved longer, due to reproducing at a later age, women also live longer, because the lifespan applies to the whole species. I don't suspect this is why we're living so much longer - I mean, the human lifespan used to be much shorter, under the same conditions that they're citing.
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